Modern airships are filled with helium.

Using a diagram of orbital diagrams or electron configurations or both, explain why helium is safer than hydrogen for use in airships. Use diagrams and words to explain your answer.




Helium

Helium is safer to use in airships because it is a Noble gas and it has a nucleus.

Hydrogen


Hydrogen is more reactive and less stable than Helium.










http://www.apsidium.com/elements/001.htm